IRS has played a pioneering role in the development and implementation of patient dosimetry in the field of diagnostic radiology, with over 40 years experience in this field. We employ expert advisers who work at the forefront of medical physics, delivering cutting edge services to customers Nationwide.

Our Dosimetry Team deliver over 100,000 monitors per year to individuals and organisations operating across a wide variety of sectors, from Trust hospitals to industrial clients operating in the most challenging of environments.

We are proud to help keep your people, patients and workplace safe.

Our Dosimetry Services

IRS offer a wide range of Personal and Environmental Radiation Monitoring devices that can measure the effective and equivalent doses received by persons exposed to ionising radiations. Monitoring involves the assessment for Beta, Gamma and Neutron radiation. Increasingly, we are also helping our customers monitor radon concentrations in their workplace.

Our flexible and competitively-priced personnel monitoring service can supply monitors to be worn for periods of one, two or three months at a time.  Monitors can be supplied continuously, periodically or on a one-off basis.  All monitoring services come with the ability to view your dose reports online and are approved by the Health and Safety Executive (HSE).

IRS provide a fully administered dosimetry service, all that you are required to do is notify us of who needs to be monitored and ensure that your dosimeters are returned after use and we will take care of the rest.


For more information about how our Dosimetry services work in detail, we have created a Customer Guide and Frequently Asked Questions section for this website.

We hope you find this information useful!


IRS provides Optically Stimulated Luminescence (OSL) dosimeters, Thermo-Luminescent dosimeters (TLD) and direct-reading electronic dosimeters, with whole body or extremity monitoring available as required.

Electronic dosimeters are particularly useful when monitoring staff for a limited period of time, i.e. during pregnancy, or in the event that more frequent dose readings may be required.

We also supply passive radon detection monitors. These monitors utilise passive alpha-track detection technology and can monitor atmospheric radon concentrations in the workplace.

Further Information

If you want to know more about our dosimetry services, please contact us as

Alternatively, you can send us a message on our Contact Page.

Ordering Dosimeters from IRS

If you would like to arrange Dosimetry Services with IRS, please see our Order Forms page where you can download a Standard New Customer Order Form.

Please complete this form and return it to the Dosimetry Team via email at